CVE-2026-22166 GPU DDK - Write UAF in KEGLGetPoolBuffers, WebGL reachable
A write use-after-free in the GPU driver allows attackers to execute code or escalate privileges via malicious WebGPU content.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-22166?
CVE-2026-22166 is a high-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 1 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger write UAF crash in the GPU GLES user-space shared library. On certain platforms, when the process executing graphics workload has system privileges this could enable subsequent exploit on the system.
Weakness: CWE-416
Which versions are affected by CVE-2026-22166?
It affects 1 product.
Products include Imaginationtech Ddk.
How do I fix CVE-2026-22166?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-22166 being exploited?
There is no known exploitation of CVE-2026-22166 in the wild and no public exploit code.
Other vulnerabilities in Imagination Technologies Graphics DDK
- CVE-2026-16280 GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset
- CVE-2025-13952 GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP
- CVE-2026-21732 GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation
- CVE-2025-25176 GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world
- CVE-2025-58411 GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF
Sources
Also known as A-492082695, ASB-A-492082695, GHSA-7xjg-gxff-2m4m.